package com.unicorn.util.common;

import java.security.MessageDigest;

public class MD5Tool {
	
	public final static String MD5(String s){ 
		char hexDigits[] = { 
		'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 
		'e', 'f'}; 
		try { 
		byte[] strTemp = s.getBytes(); 
		MessageDigest mdTemp = MessageDigest.getInstance("MD5"); 
		mdTemp.update(strTemp); 
		byte[] md = mdTemp.digest(); 
		int j = md.length; 
		char str[] = new char[j * 2]; 
		int k = 0; 
		for (int i = 0; i < j; i++) { 
		byte byte0 = md[i]; 
		str[k++] = hexDigits[byte0 >>> 4 & 0xf]; 
		str[k++] = hexDigits[byte0 & 0xf]; 
		} 
		return new String(str); 
		} 
		catch (Exception e){ 
		return null; 
		} 
		} 
	
	public static void main(String [] arg)
	{
		String aa = "ab105451";
		
		System.out.println(MD5(aa));
		
	}
	

		
}
